He was a former employee of the company. vs He is a former employee of the company.

Some examples from the web:

• In another case, the Chairman of an Evaluation Committee was a former employee of the company which won the contract.
• He was a former employee of the... ...CIA.
• Vivian murdered, was a former employee.
• The key witness in the Cummings trial was a former employee, Raymond Nash.
• The man was identified as a former employee of the company that had built the housing complex, where he had moved to in the early 80s soon after his divorce.
• These details were stolen by a former employee of the betting company, who now claims to represent a business with headquarters in Melbourne, Australia.
• A former employee of mine tried to kill me.
• I'm calling about a former employee of yours - Simon.
• Our primary suspect is a former employee of yours,
• A few days earlier a former employee of Goldman Sachs had been assigned leader of the Greek Public Debt Management Agency.
• I'm officially a former employee of Atlanta General, or anywhere.
• About an hour ago, they found a former employee of yours, A debra whitehead.
• He was manipulating my father out of the company.
• He was the Drakes'first investor and owns 5 percent of the company.
• He was a former officer in the Serbian military.
• Knowles is chairman of the starkwood board, but he was cooperating with senator mayer's investigation of the company.
• The attempted assassination of Governor James Devlin by a former employee of the Oswald Correctional Facility has sent a shock wave through this election campaign and the entire state.
• That, during my time with them, I became aware of a man by the name of Rhys Kinlan, a former employee of the cartel.
• That, during my time with them, I became aware of a man by the name of Rhys Kinlan, a former employee of the cartel.
• C.W. Briggs, a former employee of North Coast Fidelity and Casualty Company of New York, is the chief suspect in the robbery of the latest victim,

Some examples from the web:

• Our primary suspect is a former employee of yours,
• In another case, the Chairman of an Evaluation Committee was a former employee of the company which won the contract.
• The man was identified as a former employee of the company that had built the housing complex, where he had moved to in the early 80s soon after his divorce.
• These details were stolen by a former employee of the betting company, who now claims to represent a business with headquarters in Melbourne, Australia.
• A former employee of mine tried to kill me.
• I'm calling about a former employee of yours - Simon.
• A few days earlier a former employee of Goldman Sachs had been assigned leader of the Greek Public Debt Management Agency.
• I'm officially a former employee of Atlanta General, or anywhere.
• He was a former employee of the... ...CIA.
• About an hour ago, they found a former employee of yours, A debra whitehead.
• The attempted assassination of Governor James Devlin by a former employee of the Oswald Correctional Facility has sent a shock wave through this election campaign and the entire state.
• That, during my time with them, I became aware of a man by the name of Rhys Kinlan, a former employee of the cartel.
• That, during my time with them, I became aware of a man by the name of Rhys Kinlan, a former employee of the cartel.
• C.W. Briggs, a former employee of North Coast Fidelity and Casualty Company of New York, is the chief suspect in the robbery of the latest victim,
• He is a former psychology professor from Stanford University.
• Given he is a former NCIS agent.
• He is a former DARPA scientist who worked on the original Intersect.
• I'm calling about a former employee of yours -
• A former employee of the US Embassy in Denmark states that SIMAS is also operating in Denmark without the Danish authorities knowing, but this information is still to be confirmed.
• You know, he is a former U.S. Marshal.